21330573

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{719}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 11847027

約数列:

[1, 3, 11, 29, 31, 33, 87, 93, 319, 341, 719, 899, 957, 1023, 2157, 2697, 7909, 9889, 20851, 22289, 23727, 29667, 62553, 66867, 229361, 245179, 646381, 688083, 735537, 1939143, 7110191, 21330573]

約数ペア:

[(1, 21330573), (3, 7110191), (11, 1939143), (29, 735537), (31, 688083), (33, 646381), (87, 245179), (93, 229361), (319, 66867), (341, 62553), (719, 29667), (899, 23727), (957, 22289), (1023, 20851), (2157, 9889), (2697, 7909)]